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    <title>bitselect</title>
    <meta name="generator" content="DocBook XSL Stylesheets V1.78.1" />
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    <div class="refentry">
      <a id="id-1"></a>
      <div class="titlepage"></div>
      <div xmlns="" class="refnamediv">
        <a xmlns="http://www.w3.org/1999/xhtml" id="bitselect"></a>
        <h1>bitselect</h1>
        <p>
            Each bit of result is corresponding bit of <code xmlns="http://www.w3.org/1999/xhtml" class="varname">a</code> if corresponding bit of <code xmlns="http://www.w3.org/1999/xhtml" class="varname">c</code> is 0.
        </p>
      </div>
      <div class="refsynopsisdiv">
        <h2></h2>
        <div class="funcsynopsis">
          <table xmlns="" border="0" summary="Function synopsis" cellspacing="0" cellpadding="0">
            <tr valign="bottom">
              <td>
                <code xmlns="http://www.w3.org/1999/xhtml" class="funcdef">
                    gentype
                    <strong class="fsfunc">                   
                        bitselect
                    </strong>
                (</code>
                <td>gentype <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">a</var>, </td>
              </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>gentype <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">b</var>, </td>
            </tr>
            <tr valign="top">
              <td> </td>
              <td>gentype <var xmlns="http://www.w3.org/1999/xhtml" class="pdparam">c</var><code>)</code></td>
            </tr>
          </table>
        </div>
      </div>
      <div class="refsect2">
        <a id="double"></a>
        <h3></h3>
        <div class="informaltable">
          <table border="0">
            <colgroup>
              <col align="left" class="col1" />
            </colgroup>
            <tbody>
              <tr>
                <td align="left">
<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="function">bitselect</code> (<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="varname">a</code>, <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="varname">b</code>,
                <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">double<em class="replaceable"><code>n</code></em></a></span> <code class="varname">c</code>)      // if double extension enabled 
</td>
              </tr>
            </tbody>
          </table>
        </div>
        <div class="informaltable">
          <table border="0">
            <colgroup>
              <col align="left" class="col1" />
            </colgroup>
            <tbody>
              <tr>
                <td align="left">
<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="function">bitselect</code> (<span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="varname">a</code>, <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="varname">b</code>,
              <span class="type"><a class="link" href="vectorDataTypes.html" target="_top">half<em class="replaceable"><code>n</code></em></a></span> <code class="varname">c</code>)      // if half extension enabled 
</td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="refsect1">
        <a id="description"></a>
        <h2>Description</h2>
        <p>
        Each bit of result is corresponding bit of <code class="varname">a</code> if corresponding bit of <code class="varname">c</code> is 0. Otherwise it is the corresponding bit of <code class="varname">b</code>.
        </p>
      </div>
      <div class="refsect1">
        <a id="notes"></a>
        <h2>Notes</h2>
        <p>
            The relational and equality operators (&lt;, &lt;=, &gt;, &gt;=, !=, ==) can be used 
            with scalar and vector built-in types and produce a scalar or vector signed integer 
            result respectively.
        </p>
        <p>
            The built-in relational functions can be used with built-in scalar or vector types as 
            arguments and return a scalar or vector integer result. If an implementation extends this 
            specification to support IEEE-754 flags or exceptions, then all built-in Relational 
            shall proceed without raising the <code class="varname">invalid</code> floating-point exception when one or more of the
            operands are NaNs.
        </p>
        <p> 
            The built-in relational functions are extended with
            <a class="citerefentry" href="cl_khr_fp64.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_fp64</span></span></a> 
            to include appropriate versions of functions that take <span class="type">double</span>, and 
            <span class="type">double{2|3|4|8|16}</span> as arguments and return values. They are also extended with
            <a class="citerefentry" href="cl_khr_fp16.html"><span class="citerefentry"><span class="refentrytitle">cl_khr_fp16</span></span></a> to include appropriate versions 
            of functions that take <span class="type">half</span>, and <span class="type">half{2|3|4|8|16}</span> as arguments and return values. 
            The relational and equality operators (&lt;, &lt;=, &gt;, &gt;=, !=, ==) can be used 
            with <span class="type">double<em class="replaceable"><code>n</code></em></span> vector types and shall produce a vector
            <span class="type">long<em class="replaceable"><code>n</code></em></span> result.
        </p>
        <p>
            The argment type <span class="type">gentype</span> can be <span class="type">char</span>,
            <span class="type">char<em class="replaceable"><code>n</code></em></span>,<span class="type">uchar</span>, <span class="type">uchar<em class="replaceable"><code>n</code></em></span>,
            <span class="type">short</span>, <span class="type">short<em class="replaceable"><code>n</code></em></span>, <span class="type">ushort</span>,
            <span class="type">ushort<em class="replaceable"><code>n</code></em></span>, <span class="type">int</span>, <span class="type">int<em class="replaceable"><code>n</code></em></span>,
            <span class="type">uint</span>, <span class="type">uint<em class="replaceable"><code>n</code></em></span>, <span class="type">long</span>,
            <span class="type">long<em class="replaceable"><code>n</code></em></span>, <span class="type">ulong</span>, <span class="type">ulong<em class="replaceable"><code>n</code></em></span>,
            <span class="type">float</span>, and <span class="type">float<em class="replaceable"><code>n</code></em></span>. 
        </p>
      </div>
      <div class="refsect1">
        <a id="specification"></a>
        <h2>Specification</h2>
        <p>
            <img src="pdficon_small1.gif" />
                                                 
            <a href="http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf#page=218" target="OpenCL Spec">OpenCL Specification</a>
        </p>
      </div>
      <div class="refsect1">
        <a id="seealso"></a>
        <h2>Also see</h2>
        <p>
            <a class="citerefentry" href="relationalFunctions.html"><span class="citerefentry"><span class="refentrytitle">Relational Functions</span></span></a> 
        </p>
      </div>
      <div xmlns="" class="refsect3" lang="en" xml:lang="en"><a xmlns="http://www.w3.org/1999/xhtml" id="Copyright"></a><h4 xmlns="http://www.w3.org/1999/xhtml"></h4><img xmlns="http://www.w3.org/1999/xhtml" src="KhronosLogo.jpg" /><p xmlns="http://www.w3.org/1999/xhtml"></p>Copyright © 2007-2010 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
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in all copies or substantial portions of the Materials.
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